CN207502966U - A kind of 2 channel voltages of PLC/current mode analog output module - Google Patents
A kind of 2 channel voltages of PLC/current mode analog output module Download PDFInfo
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- CN207502966U CN207502966U CN201721316130.1U CN201721316130U CN207502966U CN 207502966 U CN207502966 U CN 207502966U CN 201721316130 U CN201721316130 U CN 201721316130U CN 207502966 U CN207502966 U CN 207502966U
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Abstract
The utility model discloses a kind of 2 channel voltages of PLC/current mode analog output modules, 2 channel voltages of the PLC/current mode analog output module includes microprocessor and CAN transceiver, CAN controller is equipped in the microprocessor, the CAN controller is communicated to connect with CAN transceiver, the CAN bus communication connection of the PLC of the CAN transceiver and PLC, set that there are two 12 DAC digital analog converters in the microprocessor.The utility model solves the problems, such as the simulation IO output port wretched insufficiencies of PLC, easy to use, and performance is stablized.
Description
Technical field
The utility model is related to a kind of analog output modules, and in particular to a kind of 2 channel voltages of PLC/current mode simulation
Output module.
Background technology
PLC is widely used in industrial automation control system, in the design of the automatic control system of PLC, due to mould
Plan I/O port is very in short supply, and the expansion module of the simulation IO outputs for the MicroLogix1200 microprocessors being connect with PLC
1762-OF4 only has 4 analog output mouths, therefore the simulation IO output port wretched insufficiencies of PLC, use are very inconvenient.
Utility model content
The utility model to solve the above-mentioned problems, so as to provide a kind of 2 channel voltages of PLC/current mode simulation output
Module.
In order to achieve the above objectives, the technical solution of the utility model is as follows：
A kind of 2 channel voltages of PLC/current mode analog output module, 2 channel voltages/current mode simulation of the PLC are defeated
Go out module and include microprocessor and CAN transceiver, CAN controller, the CAN controller and CAN are equipped in the microprocessor
Transceiver communications connect, and the CAN bus of the PLC of the CAN transceiver and PLC communicate to connect, and two are equipped in the microprocessor
A 12 DAC digital analog converters.
In a preferred embodiment of the utility model, 2 channel voltages/current mode analog output module of the PLC
Power circuit is further included, the power circuit includes direct port, DC/DC oscillation modules, the first power module of voltage regulation, second surely
Piezoelectricity source module, the first light emitting diode, the second light emitting diode, third light emitting diode and the 4th light emitting diode, it is described
Direct port is directly connected to the power supply on PLC, and the DC/DC oscillation modules are connect with direct port, the DC/DC oscillation modules
Exportable ± 15V power supplys, first power module of voltage regulation are connect with DC/DC oscillation modules, first power module of voltage regulation
Exportable 5V power supplys, second power module of voltage regulation are connect with the first power module of voltage regulation, second power module of voltage regulation
Exportable 3.3V power supplys ,+15V the power supplys of the first light emitting diode connection DC/DC oscillation module outputs, described second shines
- 15V the power supplys of diode connection DC/DC oscillation module outputs, the third light emitting diode connect the first power module of voltage regulation
The 5V power supplys of output, the 4th light emitting diode connect the 3.3V power supplys of the second power module of voltage regulation output.
In a preferred embodiment of the utility model, the CAN transceiver be equipped with wiring pin, Wiring port,
First connectivity port and second connection end mouth, the data that the wiring pin exports the CAN controller of microprocessor internal are defeated
Go out the CAN bus to PLC, the data of the CAN bus of PLC are output to the input port of CAN controller, institute by the Wiring port
It states the first connectivity port and second connection end mouth connects the CAN bus of PLC respectively.
In a preferred embodiment of the utility model, the microprocessor is connected with output circuit, the output electricity
Road is connect respectively with external control devices and two 12 DAC digital analog converters, the output circuit include first resistor,
First operational amplifier, the first capacitance, second resistance, 3rd resistor, the 4th resistance, the first shorted end, the second shorted end, third
Shorted end, the 5th resistance, the 6th resistance, second operational amplifier, third operational amplifier, the 7th resistance, the 8th resistance, the 9th
The voltage output end connection of resistance, the tenth resistance, the 11st resistance and variable resistance, the first resistor and microprocessor, institute
It states the first operational amplifier to connect with second resistance, 3rd resistor and the 4th resistance respectively, first capacitance is respectively with first
Resistance and the connection of the first operational amplifier, first shorted end connect respectively with 3rd resistor, the 4th resistance and the second shorted end
It connects, second shorted end is connect respectively with the first operational amplifier, the 5th resistance and third shorted end, and second operation is put
Big device is connect respectively with the 5th resistance, the 6th resistance, the 7th resistance, the 9th resistance and the 8th resistance, the third operation amplifier
Device is connect respectively with the 9th resistance, third shorted end and variable resistance, the variable resistance respectively with the tenth resistance and the 11st
Resistance connects.
In a preferred embodiment of the utility model, three poles are connected between the 8th resistance and the tenth resistance
Pipe.
In a preferred embodiment of the utility model, the model STM32F103 of the microprocessor.
The beneficial effects of the utility model are：
The utility model solves the problems, such as the simulation IO output port wretched insufficiencies of PLC, easy to use, and performance is stablized.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the circuit diagram of power circuit；
Fig. 3 is the wiring schematic diagram of CAN transceiver；
Fig. 4 is the circuit diagram of output circuit.
Specific embodiment
In order to be easy to understand technical means, creative features, achievable purpose and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1 to Fig. 4,2 channel voltages/current mode analog output module of PLC provided by the utility model, including
Microprocessor 100 and CAN transceiver 200, are equipped with CAN controller 110 in microprocessor 100, and CAN controller 110 and CAN is received
Hair device 200 communicates to connect, and the CAN bus 300 of the PLC of CAN transceiver 200 and PLC communicates to connect, in microprocessor 100 also
If there are two 12 DAC digital analog converters 120, such microprocessor 100 passes through CAN controller 110, CAN transceiver 200
With the communication connection successively of CAN bus 300 so that microprocessor 100 can receive the digital quantity signal of PLC transmission, then pass through
The analog voltage of 12 120 outputting standards of DAC digital analog converters inside microprocessor 100 or current signal such as voltage 0-
5V, 0-10V or current signal 4-20mA.
The model of microprocessor 100 in the application is specially STM32F103.
In addition, the power supply of PLC can be used directly by power circuit for microprocessor 100, and micro- place can be also detected in real time
Reason device 100 exports the working condition of each voltage.
Power circuit includes direct port P1, DC/DC oscillation module U2, the first power module of voltage regulation U4, the second voltage stabilizing electricity
Source module U5, the first light emitting diode, the second light emitting diode, third light emitting diode and the 4th light emitting diode
Direct port P1 is directly connected to the power supply on PLC, and DC/DC oscillation modules U2 is connect with direct port P1, and DC/DC shakes
± 15V power supplys can be converted into, and export by the 24V electricity on PLC by swinging module.
First power module of voltage regulation U4 is connect with DC/DC oscillation modules U2, the exportable 5V electricity of the first power module of voltage regulation U4
Source, the second power module of voltage regulation U5 are connect with the first power module of voltage regulation U4, the exportable 3.3V electricity of the second power module of voltage regulation U5
Source.
+ 15V the power supplys of first light emitting diode connection DC/DC oscillation modules U2 outputs, when there is the output of+15V power supplys,
It can be bright.
- 15V the power supplys of second light emitting diode connection DC/DC oscillation modules U2 outputs, when there is the output of -15V power supplys,
It can be bright.
Third light emitting diode connects the 5V power supplys of the first power module of voltage regulation U4 outputs, when there is the output of 5V power supplys,
It can be bright.
4th light emitting diode connects the 3.3V power supplys of the second power module of voltage regulation U5 outputs, is exported when there is 3.3V power supplys
When, it can be bright.
CAN transceiver 200 and the communication structure of microprocessor 100 and CAN bus 300 are as follows：
CAN transceiver 200 is equipped with wiring pin D, Wiring port R, the first connectivity port CANH and second connection end mouth
The data that CAN controller 110 inside microprocessor 100 exports are output to the CAN bus 300 of PLC by CANL, wiring pin D,
The data of the CAN bus 300 of PLC are output to the input port of CAN controller 110 by Wiring port RKE.
The the first connectivity port CANH and second connection end mouth CANL of CAN transceiver 200 connect CAN bus 300 respectively
CAN_H and CAN_L ports if the terminal location of CAN bus 300, need to connect the metalfilmresistor of 120 Ω, otherwise resistance
Do not have to then.
Microprocessor 100 is exported by output circuit, output circuit respectively with external control devices and two 12
DAC digital analog converters 120 connect, and are exported by 12 120 transformed signals of DAC digital analog converters by output circuit to outer
Portion's control device, output circuit include first resistor R28, the first operational amplifier B, the first capacitance C23, second resistance R16, the
Three resistance R9, the 4th resistance R15, the first shorted end P6, the second shorted end P8, third shorted end P9, the 5th resistance R27, the 6th
Resistance R18, second operational amplifier A1, third operational amplifier A 2, the 7th resistance R1, the 8th resistance R26, the 9th resistance R29,
Tenth resistance R30, the 11st resistance RL and variable resistance R32.
First resistor R28 is connect with the voltage output end of microprocessor 100, and the first operational amplifier B is electric with second respectively
Hinder R16,3rd resistor R9 and the 4th resistance R15 connections, the first capacitance C23 respectively with first resistor R28 and the first operation amplifier
Device B connections, the first shorted end P6 are connect respectively with 3rd resistor R9, the 4th resistance R15 and the second shorted end P8, the second shorted end
P8 is connect respectively with the first operational amplifier B, the 5th resistance R27 and third shorted end P9, second operational amplifier A1 respectively with
5th resistance R27, the 6th resistance R18, the 7th resistance R1, the 9th resistance R29 and the 8th resistance R26 connections, third operation amplifier
Device A2 is connect respectively with the 9th resistance R29, third shorted end P9 and variable resistance R32, variable resistance respectively with the tenth resistance R30
It is connected with the 11st resistance RL.
12 DAC digital analog converters, 120 transformed DAC_OUT1 output voltage ranges in microprocessor 100 are
0-3.3V is adjusted to 0-5V (the first shorted end P6) or 0-10V by the first operational amplifier B, is exported by third shorted end P9；
When selecting electric current output, the 5V voltages of output can be converted to the electricity of 0-20mA by the first shorted end P6 and the second shorted end P8
Stream, and 4-20mA is adjusted to, then by third shorted end P9 output currents.
In addition, being connected with triode Q7 between the 8th resistance R26 and the tenth resistance R30, can be increased by triode Q7
The driving force of electric current output.
The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
- A kind of 1. 2 channel voltages of PLC/current mode analog output module, which is characterized in that 2 channel voltages/electricity of the PLC Flow pattern analog output module includes microprocessor and CAN transceiver, and CAN controller, the CAN controls are equipped in the microprocessor Device processed is communicated to connect with CAN transceiver, and the CAN bus of the PLC of the CAN transceiver and PLC communicate to connect, the microprocessor 12 DAC digital analog converters there are two inside setting.
- A kind of 2. 2 channel voltages of PLC according to claim 1/current mode analog output module, which is characterized in that institute 2 channel voltages/current mode the analog output module for stating PLC further includes power circuit, the power circuit include direct port, DC/DC oscillation modules, the first power module of voltage regulation, the second power module of voltage regulation, the first light emitting diode, the second light-emitting diodes Pipe, third light emitting diode and the 4th light emitting diode, the direct port are directly connected to the power supply on PLC, and the DC/DC shakes Swing module to connect with direct port, the exportable ± 15V power supplys of DC/DC oscillation modules, first power module of voltage regulation with DC/DC oscillation modules connect, the exportable 5V power supplys of the first power module of voltage regulation, second power module of voltage regulation and first Power module of voltage regulation connects, the exportable 3.3V power supplys of the second power module of voltage regulation, and first light emitting diode connects DC/ + 15V the power supplys of DC oscillation modules the output, -15V power supplys of the second light emitting diode connection DC/DC oscillation module outputs, institute The 5V power supplys that third light emitting diode connects the output of the first power module of voltage regulation are stated, the 4th light emitting diode connection second is steady The 3.3V power supplys of piezoelectricity source module output.
- A kind of 3. 2 channel voltages of PLC according to claim 1/current mode analog output module, which is characterized in that institute CAN transceiver is stated equipped with wiring pin, Wiring port, the first connectivity port and second connection end mouth, the wiring pin will The data of the CAN controller output of microprocessor internal are output to the CAN bus of PLC, and the Wiring port is total by the CAN of PLC The data of line are output to the input port of CAN controller, and first connectivity port and second connection end mouth connect PLC's respectively CAN bus.
- A kind of 4. 2 channel voltages of PLC according to claim 1/current mode analog output module, which is characterized in that institute State microprocessor and be connected with output circuit, the output circuit respectively with external control devices and two 12 DAC digital simulations Converter connects, and the output circuit includes first resistor, the first operational amplifier, the first capacitance, second resistance, third electricity Resistance, the 4th resistance, the first shorted end, the second shorted end, third shorted end, the 5th resistance, the 6th resistance, the second operation amplifier Device, third operational amplifier, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance and variable resistance, institute The voltage output end for stating first resistor and microprocessor connects, and first operational amplifier is electric with second resistance, third respectively Resistance is connected with the 4th resistance, and first capacitance is connect respectively with first resistor and the first operational amplifier, first short circuit End connect respectively with 3rd resistor, the 4th resistance and the second shorted end, second shorted end respectively with the first operational amplifier, 5th resistance is connected with third shorted end, the second operational amplifier respectively with the 5th resistance, the 6th resistance, the 7th resistance, 9th resistance and the 8th resistance connection, the third operational amplifier respectively with the 9th resistance, third shorted end and variable resistance Connection, the variable resistance are connect respectively with the tenth resistance and the 11st resistance.
- A kind of 5. 2 channel voltages of PLC according to claim 4/current mode analog output module, which is characterized in that institute It states and is connected with triode between the 8th resistance and the tenth resistance.
- A kind of 6. 2 channel voltages of PLC according to claim 1/current mode analog output module, which is characterized in that institute State the model STM32F103 of microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316130.1U CN207502966U (en) | 2017-10-13 | 2017-10-13 | A kind of 2 channel voltages of PLC/current mode analog output module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316130.1U CN207502966U (en) | 2017-10-13 | 2017-10-13 | A kind of 2 channel voltages of PLC/current mode analog output module |
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| CN207502966U true CN207502966U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346403A (en) * | 2020-11-12 | 2021-02-09 | 深圳市海浦蒙特科技有限公司 | Extend module connecting circuit |
-
2017
- 2017-10-13 CN CN201721316130.1U patent/CN207502966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112346403A (en) * | 2020-11-12 | 2021-02-09 | 深圳市海浦蒙特科技有限公司 | Extend module connecting circuit |
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